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Finding the Fourth Proportional to 401,466.33, 602,200.55 and 135,413.53

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Solution

The fourth proportional to 401,466.33, 602,200.55 and 135,413.53 is: 203,120.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,466.33 : 602,200.55 = 135,413.53 : x
  2. Step 2: Convert to fraction form
    401,466.33/602,200.55 = 135,413.53/x
  3. Step 3: Cross multiply
    401,466.33x = 602,200.55 × 135,413.53
  4. Step 4: Simplify right side
    401,466.33x = 81,546,101,076.47
  5. Step 5: Solve for x
    x = 81,546,101,076.47/401,466.33
  6. Step 6: Final answer
    x = 203,120.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.